you got that out of the celica manual that is exactly how i broke my rebuilt engine in except i didnt drive it gently for the 1st 500 ks. just drive it normally then
and make sure you let it warm up a bit before giving it a bit of a run.
after about 1000 ks on the clock i gave mine a good hard run up and down a few mountains with a lot of twisties and stuff and it has done it the world of good. make sure you use some run in oil for the first 500 ks
i used some by penrite it is about $35 a 5 litre bottle but its what your supposed to use.
i think half the reson my motor died befor i rebuilt it was because i would jump in the car crank her over and tear off up the street and revving to about 6 grand while it was still cold i know that was a serious cock up on my behalf. now i dont even take it over 4 grand untill it is at operating temperature.
treat your motor right and it will perform for you in the long run